Home / 685,129.93-1,027,227.80-347,519.58

Finding the Fourth Proportional to 685,129.93, 1,027,227.80 and 347,519.58

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Solution

The fourth proportional to 685,129.93, 1,027,227.80 and 347,519.58 is: 521,042.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,129.93 : 1,027,227.80 = 347,519.58 : x
  2. Step 2: Convert to fraction form
    685,129.93/1,027,227.80 = 347,519.58/x
  3. Step 3: Cross multiply
    685,129.93x = 1,027,227.80 × 347,519.58
  4. Step 4: Simplify right side
    685,129.93x = 356,981,772,548.70
  5. Step 5: Solve for x
    x = 356,981,772,548.70/685,129.93
  6. Step 6: Final answer
    x = 521,042.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.